Senior AI Data Center Technician - Hyperscale GPU

TGS International Group; Chester; On-site; GBP 40,000 - 43,000; Full time

Job summary

TGS International Group is seeking a Senior Data Center Technician (L2) for its Chester site. You will train across UK/Europe data centres, then settle in Chester as a hands-on escalation lead in AI infrastructure.

You will mentor junior technicians and drive operational standards in mission-critical environments, with a clear path into senior technical, engineering or management roles. Training spans two months across AI data centre sites.

Qualifications

• Experience in operating in a live enterprise or hyperscale data centre.
• Strong knowledge of rack and stack deployments and structured cabling.
• Server break/fix and hardware diagnostics experience.
• Knowledge of Ethernet networking and data centre infrastructure.
• Experience using ITSM platforms and maintaining accurate technical documentation.
• Strong troubleshooting, organisational and communication skills.
• Able to work independently within a mission-critical operational environment.
• Genuine interest in a long-term career in AI infrastructure and data centre operations.

Responsibilities

• Support day-to-day operation of mission-critical AI data centre environments.
• Deliver Smart Hands services - server reseats, drive replacements, transceiver swaps, cable replacements, inspections and photographic documentation.
• Perform rack and stack deployments, structured copper and fibre cabling, PDU installation and infrastructure commissioning.
• Lead deployment of enterprise server infrastructure supporting AI and GPU compute.
• Diagnose and resolve hardware, server and networking faults across mission-critical systems.
• Support Ethernet and InfiniBand fabric deployments within HPC environments.
• Act as the primary technical escalation point during shift operations.
• Resolve complex issues involving BMC/IPMI, server hardware, DPUs and InfiniBand networking.
• Mentor Junior Data Center Technicians and produce runbooks and Root Cause Analysis reports.
• Manage hardware lifecycle activity including RMAs, inventory and asset tracking; keep ITSM/Jira current.

Skills

Live data centre experience

Rack and stack deployments

Structured cabling

Server break/fix

Ethernet networking

ITSM and Jira

Troubleshooting

Independent work

Education

IT/CS/Engineering degree

Vendor certifications (Dell, HPE, Lenovo, Cisco)

CompTIA Server+ or Network+

Tools

ITSM platforms

Jira

Job description

TGS International Group is seeking a Senior Data Center Technician (L2) for its Chester site. You will train across UK/Europe data centres, then settle in Chester as a hands-on escalation lead in AI infrastructure.

You will mentor junior technicians and drive operational standards in mission-critical environments, with a clear path into senior technical, engineering or management roles. Training spans two months across AI data centre sites.